Submission #294458

#	Time	Username	Problem	Language	Result	Execution time	Memory
294458		CaroLinda	New Home (APIO18_new_home)	C++14	0 / 100	3910 ms	699584 KiB

new_home

#include <bits/stdc++.h>

#define lp(i,a,b) for(int i = a; i < b; i++)
#define pb push_back
#define sz(x) (int)(x.size())
#define all(x) x.begin(),x.end()
#define debug //printf
#define tiii tuple<int,int,int>
#define mkt make_tuple
#define pii pair<int,int>
#define mk make_pair
#define ll long long
#define ff first
#define ss second

const int MAXN = 6e5+100 ;
const int MAXT = 1e8+10 ;
const int MAX_COORD = 3e8+7 ;

using namespace std ;

struct Event
{
    int xConta, xIntercept, type , t1, t2 ;
    Event(int a=0, int b=0, int c=0, int d=0, int e=0) : xConta(a), xIntercept(b), type(c) , t1(d), t2(e){}

};

int ansQuery[MAXN] ;

struct Seg
{

    vector<Event> tree[MAXN*2] ;

    int m(int l, int r) { return (l+r)>>1 ; }

    void insertEvent(int pos, int l, int r, int t1, int t2,  Event e)
    {

        if( l > t2 || r < t1 ) return ;
        if( e.type > 0 ) tree[pos].push_back(e) ;
        if( l >= t1 && r <= t2 ) return (void)( tree[pos].push_back(e) );

        int lef = pos+1 ;
        int rig = pos+2*( m(l,r) - l + 1 );

        insertEvent( lef, l, m(l,r) , t1, t2 , e ) ;
        insertEvent(rig, m(l,r)+1, r, t1, t2 , e) ;

    }

    void solve(int pos, int l, int r )
    {

        int mxNegative = -MAXT , mnPositive = MAXT ;

        for(auto e : tree[pos])
        {
            if( e.type == 0 ) continue ;
            if( e.type > 0 ) ansQuery[ e.type ] = max( ansQuery[e.type] , mxNegative - e.xConta ) , debug("mxNegative = %d\n" , mxNegative ) ;
            else mxNegative = max(mxNegative, e.xIntercept ) ;
        }

        reverse(all(tree[pos])) ;

        for(auto e : tree[pos])
        {
            if( e.type < 0 ) continue ;
            if( e.type > 0 )  ansQuery[e.type] = max( ansQuery[e.type] , e.xConta - mnPositive ) , debug("mnPositive = %d\n" , mnPositive ) ;
            else mnPositive = min(mnPositive, e.xIntercept ) ;
        }

        if(l == r) return ;

        solve(pos+1, l , m(l,r)  ) ;
        solve( pos + 2*( m(l,r) - l + 1 ) , m(l,r)+1, r ) ;

    }

} seg ;

//O ANO PODE IR ATÉ 10^8
//VAI TER QUE FAZER COMPRESSÃO

int N , K , Q ;
vector< tiii > myVecOfTuples ;
set<int> store[MAXN] ;
map< pii , int > segments[MAXN] ;
vector<Event> sweep ;
map<int,int> compressionTime ;
map<int, vector<pii> > mySet[MAXN] ;

void operation( set<int>::iterator itLess, set<int>::iterator itMore , int type , int clock , bool isRemoval )
{
    int midPointL = (*itMore + *itLess)>>1 ;
    int midPointR = (*itMore + *itLess+1)>>1;

    if(isRemoval)
    {
        Event a = Event( midPointL, *itLess, 0 , segments[type][ mk(midPointL,*itLess) ] , clock );
        Event b = Event( midPointR, *itMore, -1 , segments[type][ mk(midPointR, *itMore) ] , clock ) ;

        segments[type].erase( segments[type].find( mk(midPointL, *itLess) ) ) ;
        segments[type].erase( segments[type].find( mk(midPointR, *itMore) ) ) ;

        if(a.t1 <= a.t2)
            sweep.pb(a);
        if(b.t1 <= b.t2 )
            sweep.pb(b) ;
    }
    else
    {
        segments[ type ][ mk(midPointL, *itLess) ] = clock ;
        segments[type][ mk(midPointR, *itMore) ] = clock ;
    }

}

void insertion(int x_coord, int type, int clock )
{

    auto itMore = store[type].lower_bound(x_coord) ;
    auto itLess = itMore ; itLess-- ;

    operation( itLess, itMore, type, clock-1 , true) ;

    store[type].insert( x_coord ) ;

    itMore = store[type].find( x_coord ) ;
    itLess = itMore ; itLess-- ;

    operation( itLess, itMore, type, clock, false ) ;

    itLess = itMore ; itLess++ ;
    swap(itMore, itLess) ;

    operation( itLess, itMore, type, clock, false );

}

void removal(int x_coord, int type, int clock )
{

    auto itMore = store[type].find(x_coord) ;
    auto itLess = itMore ; itLess-- ;

    operation( itLess, itMore, type, clock, true ) ;

    itLess = itMore ; itLess++ ;
    swap(itMore, itLess) ;

    operation( itLess, itMore, type, clock, true ) ;

    store[type].erase(itLess);

    itMore = store[type].lower_bound(x_coord);
    itLess = itMore ; itLess--;

    operation( itLess, itMore, type, clock+1, false ) ;

}

int main()
{

    scanf("%d%d%d", &N , &K , &Q ) ;
    for(int i = 1 ; i <= K ; i++ )
    {

        store[i].insert( -MAX_COORD ) ;
        store[i].insert( MAX_COORD ) ;

        operation( store[i].begin() , prev( store[i].end() ) , i , 1, false ) ;

    }
    for(int i = 1 , x , t , a , b ; i <= N ; i++ )
    {
        scanf("%d%d%d%d", &x, &t, &a, &b ) ;
        mySet[t][x].push_back( mk(a,b) ) ;
       /* myVecOfTuples.pb( mkt( a, t, x ) ) ;
        myVecOfTuples.pb( mkt(b,-t, x) ) ; */
    }

    for(int i = 1 ; i <= K ; i++ )
    {

        for(auto &aux: mySet[i] )
        {
            vector<pii> x_coord = aux.ss ;

            sort(all(x_coord)) ;
            x_coord.pb( mk( MAXT, MAXT ) ) ;

            int mnTime = x_coord[0].ff ;
            int mxTime = x_coord[0].ss ;

            for(int j = 1 ; j < sz(x_coord) ; j++ )
            {
                if( x_coord[j].ff > mxTime )
                {
                    myVecOfTuples.pb( mkt( mnTime , -i, aux.ff ) ) ;
                    myVecOfTuples.pb( mkt( mxTime, i, aux.ff ) ) ;
                }
                else mxTime = max(mxTime, x_coord[j].ss ) ;
            }

        }
    }

    sort(all(myVecOfTuples)) ;

    for(auto tup : myVecOfTuples )
    {

        int clock = get<0>(tup) ;
        int type = get<1>(tup) ;
        int x_coord = get<2>(tup) ;

        debug("Eh a vez de %d %d %d\n" , x_coord, type, clock ) ;

        if( type < 0 ) insertion( x_coord , -type, clock ) ;
        else removal( x_coord, type, clock );

    }

    for(int i = 1 ; i <= K ; i++ )
        operation( store[i].begin() , prev( store[i].end() ) , i , MAXT, true ) ;

    for(int i = 1 , l , y ; i <= Q ; i++ )
    {
        scanf("%d%d", &l, &y ) ;
        sweep.pb( Event(l,l,i,y,y) );
    }

    sort(all(sweep), [&](Event a, Event b)
         {
             if( a.xConta != b.xConta ) return a.xConta < b.xConta ;
             else return a.type < b.type ;
         } );

    for(auto &e : sweep )
    {
        if( compressionTime.find( e.t1 ) == compressionTime.end() )
            compressionTime[e.t1] = 0 ;

        if( compressionTime.find( e.t2 ) == compressionTime.end() )
            compressionTime[e.t2] = 0 ;

    }
    int Key = 1 ;
    for(auto &e : compressionTime ) e.ss = Key++ ;

    for(auto e : sweep ) seg.insertEvent( 1 , 1 , sz(compressionTime) , compressionTime[e.t1] , compressionTime[e.t2] , e ) ;

    seg.solve(1,1, sz(compressionTime) ) ;

    for(int i = 1 ; i <= Q ; i++ ) printf("%d\n" , ansQuery[i] > 100000010 ? -1 : ansQuery[i] ) ;

}

/*
1 1 1
5 1 2 5

1 1 1
5 1 1 10
7 5

2 1 3
1 1 1 4
1 1 2 6
1 3
1 5
1 7

4 2 4
3 1 1 10
4 1 8 10
9 2 2 4
7 2 5 7
5 3
5 6
5 9
1 10

1 1 1
100000000 1 1 1 1
1 1

Eh a vez de 3 1 1
Eh a vez de 9 2 2
Eh a vez de 9 -2 4
Eh a vez de 7 2 5
Eh a vez de 7 -2 7
Eh a vez de 4 1 8
Eh a vez de 3 -1 10
Eh a vez de 4 -1 10


*/

Compilation message (stderr)

new_home.cpp: In member function 'void Seg::solve(int, int, int)':
new_home.cpp:61:107: warning: left operand of comma operator has no effect [-Wunused-value]
   61 |             if( e.type > 0 ) ansQuery[ e.type ] = max( ansQuery[e.type] , mxNegative - e.xConta ) , debug("mxNegative = %d\n" , mxNegative ) ;
      |                                                                                                           ^~~~~~~~~~~~~~~~~~~
new_home.cpp:70:106: warning: left operand of comma operator has no effect [-Wunused-value]
   70 |             if( e.type > 0 )  ansQuery[e.type] = max( ansQuery[e.type] , e.xConta - mnPositive ) , debug("mnPositive = %d\n" , mnPositive ) ;
      |                                                                                                          ^~~~~~~~~~~~~~~~~~~
new_home.cpp: In function 'int main()':
new_home.cpp:220:15: warning: left operand of comma operator has no effect [-Wunused-value]
  220 |         debug("Eh a vez de %d %d %d\n" , x_coord, type, clock ) ;
      |               ^~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:220:51: warning: right operand of comma operator has no effect [-Wunused-value]
  220 |         debug("Eh a vez de %d %d %d\n" , x_coord, type, clock ) ;
      |                                                   ^~~~
new_home.cpp:220:57: warning: right operand of comma operator has no effect [-Wunused-value]
  220 |         debug("Eh a vez de %d %d %d\n" , x_coord, type, clock ) ;
      |                                                         ^~~~~
new_home.cpp:167:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  167 |     scanf("%d%d%d", &N , &K , &Q ) ;
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:179:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  179 |         scanf("%d%d%d%d", &x, &t, &a, &b ) ;
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:232:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  232 |         scanf("%d%d", &l, &y ) ;
      |         ~~~~~^~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35
• Subtask 6: 0 / 20